#define _CRT_SECURE_NO_WARNINGS 1
class Solution {
public:
    bool canPartition(vector<int>& nums)
    {
        int n = nums.size(), sum = 0;
        for (auto x : nums) sum += x;

        int aim = sum / 2;
        if (sum % 2) return false;

        vector<vector<bool>> dp(n + 1, vector<bool>(aim + 1));
        for (int i = 0; i <= n; i++) dp[i][0] = true;

        for (int i = 1; i <= n; i++)
        {
            for (int j = 1; j <= aim; j++)
            {
                dp[i][j] = dp[i - 1][j];
                if (j >= nums[i - 1]) dp[i][j] = dp[i][j] || dp[i - 1][j - nums[i - 1]];
            }
        }

        return dp[n][aim];
    }
};